Convert text to ASCII codes and ASCII codes back to text instantly with our free online ASCII Converter. This tool supports all 128 standard ASCII characters including letters, numbers, punctuation, and control characters. Perfect for programmers, students learning character encoding, and anyone working with low-level text data or network protocols.
Enter text in the input field to convert to ASCII codes.
Or enter ASCII codes (space-separated) to convert back to text.
Select your preferred output format (decimal, hexadecimal, or binary).
Click 'Convert' and copy the results.
ASCII (American Standard Code for Information Interchange) is a character encoding standard that assigns numerical values (0-127) to letters, digits, punctuation marks, and control characters used in computers and communication equipment.
ASCII uses 7 bits to represent 128 characters (English only), while Unicode supports over 143,000 characters from virtually all writing systems worldwide. ASCII is a subset of Unicode.
This tool handles the standard 128 ASCII characters. Extended ASCII (128-255) varies by codepage. For Unicode characters beyond ASCII, consider using a Unicode converter.